When darkness falls, 50 000 lights go on. In 2016, British artist Bruce Munro installed his “Field of Light” at the foot of Uluru, the inselberg sacred to Aboriginal Australians, which European colonizers named “Ayers Rock.” On an area about the size of seven soccer fields, solar-powered glass spheres connected by glass fibers change color from violet to blue to white or green. Originally meant to shine for only a year, the sea of light in the desert has proved so popular that it will remain in place until the end of 2020.